<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<h1>登录</h1>
<form action="plan/" method="post" >
账号:<input type="text" name="user"></br>
密码:<input type="text" name="pass"></br>
<input type="submit" value="登录">
</body>
</html>